One of three in a series about pollution, this teacher's guide for a unit on noise pollution is designed for use in junior high school grades. It offers suggestions for extending the information and activities contained in the textual material for students. Chapter 1 discusses the problem of noise pollution and involves students in processes of observing, gathering data, analyzing, and hypothesizing. Chapter 2 gives up-to-date information pertaining to the problems and considers hearing, describing sound, sources of noise, industrial and residential noise, physical effects of noise, and solving noise problems. Chapter 3 contains 23 student investigations - experiments, demonstrations, projects - related to sound and hearing and provides opportunities to consider sounds people tend to take for granted as possible pollutants. Utilizing a question format, the last chapter outlines a series of discussions, activities, and projects concerning noise pollution suited to individual, small group, and large group work. Numerous illustrations supplement the text. Related documents are SE 012 758 and SE 012 759. (BL)